Hi folks
I made this contraption to save on O2. It's seems to be working so far perfectly. Easy trigger. Just thought I would throw this out there to help others save when exhaling as we lose alot of o2 during this time.
Flow rate I'm using is 8 litres per minute.
I used the trigger from a plant sprayer. Works well.
Good luck if you are looking to do the same. Use zip ties to get it to hold tightly at the main sections.
Snowflake
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